Natassia or Jessamine

For our second baby, my DH and I had been set on JessamineLyricSkye (2 middle names) to go with our daughter, Sepphiria JadeRaine.
The other day my DH came upon the name Natassia and fell in love with it and now doesn't want to use Jessamine! I like both names, but I think Jessamine goes better with Sepphiria.

What do y'all think?? Also, to entertain the name Natassia, what name would be fit as a MN?

I have never seen Natassia, but I want to assume that it is a form of Nastasia, which is a form of Anastasia. I personally like it, though I do prefer Nastasia, though I can see why people wouldn't prefer that spelling since it basically has the word nasty in it. From what I can dig up on it, though, it seems like it is actually used as a variation.

As much as I love Jessamine, I think that Natassia fits really well with your daughters name.